US developed DNA graphene nanostructures

**Abstract** Scientists from the Massachusetts Institute of Technology and Harvard University have made a breakthrough by using DNA to build graphene nanostructures with unique electronic properties. This development marks a significant step forward in the large-scale production of graphene-based electronic chips. The findings were recently published in *Nature News*. By carefully controlling the DNA sequence, researchers can guide the formation of DNA nanostructures with specific folded shapes. These structures act as templates that help shape inorganic materials into precise nanoscale patterns on a single layer of graphene. This method offers a new way to create complex designs at the atomic level. The DNA nanostructures are created using a technique known as DNA origami. It’s somewhat similar to building with interlocking puzzle pieces, where each strand can bind to four specific structures, allowing for the creation of highly detailed nano-shapes. Scientists have already managed to produce over 100 different nanoscale patterns using this approach. However, DNA itself is not stable under normal conditions—it degrades when exposed to sunlight and oxygen, and it can react with other molecules. To overcome this, the team transferred the structural information from DNA to graphene. They first attached the DNA to the graphene surface using aminopyrine, then coated it with silver and gold. Once the gold layer was in place, they used plasma etching to remove the exposed graphene, leaving behind the desired structure. Finally, they removed the metallized DNA using sodium cyanide. Using this technique, the researchers created various shapes such as rings and ribbons. While most of the original structure remained intact, some details were lost during the metallization process, making the method less precise than electron beam lithography. But unlike traditional methods, which are expensive and hard to scale, this DNA-based approach offers a more practical and scalable solution. One particularly interesting structure is the graphene ribbon. These narrow strips can restrict electron movement, creating a band gap—a property that makes them suitable for use in transistors. Graphene rings, on the other hand, could serve as quantum interference devices. Both structures hold great promise for future nanoelectronics. In the long run, this DNA-based approach could revolutionize how scientists design and fabricate graphene circuits. For years, placing tiny carbon structures like nanowires or nanotubes onto graphene has been a major challenge. Now, with the help of metallized DNA, the process becomes much more straightforward. Robert Harden, a professor at the University of California, praised the concept, calling it innovative and highlighting its potential to advance graphene-based nanoelectronics. He believes this method could accelerate research and bring us closer to real-world applications. While the current technique isn’t as precise as electron beam lithography, its scalability and cost-effectiveness make it an exciting alternative. As scientists continue to refine the process, the dream of replacing silicon with graphene in supercomputers may soon become a reality. The "smog" in their minds is slowly lifting, and the era of graphene electronics is drawing near.

Chandelier

Perfect for catching attention like no other lighting fixture, chandeliers of LEDER technology feature striking designs and bold illumination for a touch that's sure to elevate any space. This generously portioned piece is best suited to larger spaces like living rooms and formal dining rooms.

Strands of wooden beads in an airy cream finish cascade from the top to offer up a touch of natural style, making this design right at home in a cottage, modern farmhouse, and industrial arrangements alike.This design is guaranteed to grab glances, whether it`s greeting guests in the entryway or lighting up the dining room table. This chandelier is crafted from metal and wood, showcasing on its circular silhouette an array that lend a breezy, laid-back air to this distinctive design.It features an open design with a turned detailing finish, lending some traditional appeal to your arrangement.

Features:

• Natural Style Design

• Full of elegance and style

• Reasonable price

• Energy province electricity

• Quality Assurance

• Color temperature :3000k-6000K

• Details in place

• Type of protection: IP20

• Warranty for bulbs :2 years

Ideal for highlighting your space in a statement-making style. And has a very affordable price.

We have rich production experience in lighting.Except Decoration Lighting , we also offered other product in Indoor Lighting .Such as :

LED Panel Light , Track Light , Linear Light ,Wall Light , LED Strip Light , LED Tube Light , Cabinet Light , LED Bulb , LED Ceiling Light as so on .

Raindrop Chandelier,Sphere Chandelier,Chrome Chandelier,Small Beaded Chandelier

LEDER LIGHTING CO.,LTD , https://www.lederlight.com